From 54e9ea3d5dc8f215abe53c355ddc70c18e0d3329 Mon Sep 17 00:00:00 2001 From: Michael Strauss Date: Thu, 17 Nov 2022 10:40:46 -0500 Subject: [PATCH] drm/amd/display: Fix DCN2.1 default DSC clocks [WHY] Low dscclk in high vlevels blocks some DSC modes. [HOW] Update dscclk to 1/3 of dispclk. Reviewed-by: Charlene Liu Acked-by: Stylon Wang Signed-off-by: Michael Strauss Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c index c4eca10..c26da3b 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c @@ -565,7 +565,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn2_1_soc = { .dppclk_mhz = 847.06, .phyclk_mhz = 810.0, .socclk_mhz = 953.0, - .dscclk_mhz = 489.0, + .dscclk_mhz = 300.0, .dram_speed_mts = 2400.0, }, { @@ -576,7 +576,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn2_1_soc = { .dppclk_mhz = 960.00, .phyclk_mhz = 810.0, .socclk_mhz = 278.0, - .dscclk_mhz = 287.67, + .dscclk_mhz = 342.86, .dram_speed_mts = 2666.0, }, { @@ -587,7 +587,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn2_1_soc = { .dppclk_mhz = 1028.57, .phyclk_mhz = 810.0, .socclk_mhz = 715.0, - .dscclk_mhz = 318.334, + .dscclk_mhz = 369.23, .dram_speed_mts = 3200.0, }, { -- 2.7.4